Analysis
- max time kernel
145s - max time network
159s - platform
windows10-2004_x64 - resource
win10v2004-20231020-en - resource tags
- submitted
28/10/2023, 19:56
General
- Target NEAS.73413470c47184652e368557aae83830.exe
- Size 97KB
- Sample231028-ynmpjaaa84
- SHA256 ffeb57e7f334903e10bf3aa6177de7ef1e60abc1b1f41fd62270d462356dee2e
Score
7/10
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
- UPX packed file 5 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of WriteProcessMemory 3 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\NEAS.73413470c47184652e368557aae83830.exe"C:\Users\Admin\AppData\Local\Temp\NEAS.73413470c47184652e368557aae83830.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\yokitoki.exeC:\Users\Admin\AppData\Local\Temp\yokitoki.exe2⤵
- Executes dropped EXE
-
Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
yokitoki.exe
yokitoki.exe
memory/1032-6-0x0000000000400000-0x0000000000417000-memory.dmp
memory/3444-0-0x0000000000400000-0x0000000000417000-memory.dmp
memory/3444-1-0x0000000000400000-0x0000000000417000-memory.dmp